<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="scc.css">
</head>

<body>
    <div class="clock">
        <div class="hour">
            <div class="hr" id="hr"></div>
        </div>
        <div class="min">
            <div class="mn" id="mn"></div>
        </div>
        <div class="sec">
            <div class="sc" id="sc"></div>
        </div>
    </div>
    <script type="text/javascript">
        const deg = 6;
        const hr = document.querySelector("#hr");
        const mn = document.querySelector("#mn");
        const sc = document.querySelector("#sc");
        setInterval(() => {
            let day = new Date();
            let hh = day.getHours() * 30;
            let mm = day.getMinutes() * deg;
            let ss = day.getSeconds() * deg;
            hr.style.transform = `rotateZ(${hh+(mm / 12)}
            deg)`;
          mn.style.transform = `rotateZ(${mm}deg)`;
          sc.style.transform = `rotateZ(${ss}deg)`;
        }, 1000);
    </script>
</body>

</html>